Found 9 alternatives for LS6522-S by LSI/CSI. Interface Sensor And Detector Interfaces — 16-SOIC (0.154", 3.90mm Width).
IC PHOTOELECTR SMOKE DET 16SOIC
IC DSI SLAVE FOR R-SENSE 16-SOIC
PIR SENSOR INTERFACE
IC SMOKE DETECT PHOTO MEM 16SOIC
IC HORN DRIVER DUAL 16SOIC
PIR SENSOR INTERFACE
PIR SENSOR INTERFACE
IC PHOTOELECTR SMOKE DET 16SOIC
IC ION SMOKE DETECT ASIC 16SOIC